Reynolds number

Reynolds number
(Re) the velocity of flow of a fluid multiplied by the diameter of the vessel and divided by the kinematic viscosity of the circulating fluid. It is lower for turbulent flow and higher for laminar flow, and is used for characterizing the conditions for the onset of turbulence.

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  • Reynolds number — n. 〚after O. Reynolds (1842 1912), Eng physicist〛 a dimensionless parameter used to determine the nature of fluid flow along surfaces and around objects, as in a wind tunnel * * * In fluid mechanics, a number that indicates whether the flow of a… …   Universalium

  • Reynolds number — n. [after O. Reynolds (1842 1912), Eng physicist] a dimensionless parameter used to determine the nature of fluid flow along surfaces and around objects, as in a wind tunnel …   English World dictionary

  • Reynolds number — In fluid mechanics and heat transfer, the Reynolds number mathrm{Re} is a dimensionless number that gives a measure of the ratio of inertial forces ({old mathrm V} ho) to viscous forces (mu / L) and, consequently, it quantifies the relative… …   Wikipedia

  • Reynolds number — A dimensionless number that establishes the proportionality between the fluid inertia and the sheer stress as a result of viscosity. The work of Osborne Reynolds has shown that the flow profile of fluid in a closed circuit depends upon the… …   Aviation dictionary

  • reynolds number — n. Physics a quantity indicating the degree of turbulence of flow past an obstacle etc. Etymology: O. Reynolds, Engl. physicist d. 1912 * * * ˈrenəldz noun Usage: usually capitalized R Etymology: after Osborne Reynolds died 1912 English physicist …   Useful english dictionary

  • Reynolds number — /ˈrɛnəldz nʌmbə/ (say renuhldz numbuh) noun a dimensionless number which determines whether the fluid flow in a particular situation will be streamline or turbulent. It is important in hydrodynamics and aeronautics since models with the same… …  

  • Reynolds number — Reinoldso skaičius statusas T sritis fizika atitikmenys: angl. Reynolds number vok. Reynolds Zahl, f rus. число Рейнольдса, n pranc. nombre de Reynolds, m …   Fizikos terminų žodynas

  • Reynolds number — Reinoldso skaičius statusas T sritis Energetika apibrėžtis Apibrėžtį žr. priede. priedas( ai) MS Word formatas atitikmenys: angl. Reynolds number vok. Reynolds Zahl, f rus. Рейнольдса число, n pranc. nombre de Reynolds, m …   Aiškinamasis šiluminės ir branduolinės technikos terminų žodynas

  • Reynolds number — Reinoldso skaičius statusas T sritis Standartizacija ir metrologija apibrėžtis Apibrėžtį žr. priede. priedas( ai) Grafinis formatas atitikmenys: angl. Reynolds number vok. Reynoldssche Zahl, f; Reynoldszahl, f rus. число Рейнольдса, n pranc.… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • Reynolds number — noun a dimensionless parameter that determines the behavior of viscous flow patterns. In pipe flow a value less than about 2,000 (known as the critical Reynolds number) produces laminar flow, one above about 3,000 produces turbulent flow… …   Wiktionary

  • Reynolds number — Reinoldso skaičius statusas T sritis chemija apibrėžtis Skysčio arba dujų inercijos ir klampos jėgų santykis. atitikmenys: angl. Reynolds number rus. критерий Рейнольдса; число Рейнольдса ryšiai: sinonimas – Reinoldso kriterijus …   Chemijos terminų aiškinamasis žodynas

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